Garbage disposal device



H. JORDAN 2,442,812

GARBAGE DISPOSAL DEVICE 2 Sheets-Sheet l June 8, 1948.

Filed Jan. 8, 1946 ial.

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June 8, 1948. H JORDAN GARBAGE DISPOSAL DEVICE 2 Sheets-Sheet 2 FiledJan. 8, 1946 www Nm. im ma@ wr pm 7 or W4 J5 `O\ 5F. L. Hf

Patented June 8, 1948 GARBAGE DISPOSAL DEVICE Hans Jordan, Los Angeles,Calif., assigner to Samuel Given, Beverly Hills, Calif.

Application January 8, 1946, Serial No. 639,753

Claims. (Cl. 241-257) This invention relates to the waste disposal artand, more particularly, to a device adapted for the comminution anddisposal of garbage or other waste materials and which is suitable forhome or restaurant use where only relatively small volumes of suchmaterials are normally passed through the device.

It is old in the art to provide a garbage disposal device having afrusto-conical hopper with the walls thereof slanting inwardly as theyprogress upwardly from the bottom, with a rotating cutter head in thebottom thereof adapted to cooperate with one or more cutters in the wallof the hopper to comminute and grind garbage therein in response torotation of the cutter head.

It is a primary object of my invention to provide such a garbagedisposal device having a cutter head and cutter elements of an improveddesign, so as to provide more efficient operation of the device,

Another object of my invention is to provide such a garbage disposaldevice having a novel construction for the free exhaust and removal ofthe comminuted garbage from the device, so as to reduce the tendency cisuch material to lodge in or clog the device.

A further object ot my invention is to provide such a garbage disposaldevice having a stationary cutter in the side wall of the comminutingchamber and a rotating cutter adapted to be rotated in the chamber so asto cooperate with the stationary cutter to comminute garbage or wastematerial therebetween, the rotating cutter being mounted on a rotatablebase and being separately rotatable relative thereto, so that it canrotate relative to the base into and out of cutting relation with thestationary cutter. This construction permits the rotary cutter to rotateon its own axis to pass solid material which cannot successfully becomminuted thereby, such as pieces of metal. glass, and other articlesthat may inadvertently nd their way into the machine. It is important insuch construction that the rotary cutter be mounted for rotation on anaxis that is substantially parallel to the plane of the stationarycutter and that the top of the rotary cutter be sloped downwardly fromits leading edge, so that when it is in its open or retracted positionnon-comminutable objects, such as metal or glass. can slip readily overthe top of the rotary cutter, and this is a further object of myinvention.

Another object of the invention is to provide such a disposal devicewhich is provided with a rotating, substantially circular table havingits 2 rim inside the wail of the comminuting chamber and above the lowerend thereof, and having the outer rim conical in form, so as tocentrifugally impel water and material on the table, when rotated,slightly upwardly and away from the clearance between the table and thewall of the comminuting chamber. This substantially prevents water andcomminuted material from passing into such clearance during operation ofthe device, which is highly desirable and another object of thelnvetnion.

Another object of the invention is to provide a blocking member in thethroat of the comminuting chamber which will permit the passage ofgarbage or waste material therethrough, but which will be moved by ahuman hand thrust into the throat, the lblocking member being suit ablyconnected to the power means of the device for deenergizing the same inresponse to such movement of the blocking member.

In conventional types of garbage disposal de vices some of them areadapted to commlnute waste material by shredding or grinding it. Somekinds of vegetable iibers are extremely difcult to shred or grind intosmall pieces, such as asparagus fibers, and none of the prior artmachines of which I have knowledge are capable of consistently reducingsuch brous material to small pieces, with the result that in suchmachines such long vegetable fibers tend to catch on projections in themachines so as to clog them. Furthermore, such long strands of vegetablefibers, if passed through a garbage disposal machine, without cloggingit, still tend to clog sewer lines, which is highly undesirable. It istherefore a further object of the present invention to first comminutethe waste material and then l to apply a separate cutting action theretoso as to insure that substantially all long filaments of brous materialswhich pass through the first comminuting operation are subsequently cutinto relatively short lengths so that they will not clog the machine andso that they may be disposed of readily. I prefer to accomplish this byfirst comminuting the material by the cooperation of a stationary cutterin the side wall of the comminuting chamber and a rotating cuttercooperating therewith, passing the comminuted material and any remainingfilaments of fibrous material through a slot in the side wall into asubstantially vertical discharge passage, and then chopping the materialinto relatively short lengths as it passes out of the discharge passage,the chopping preferably being accomplished by suitable rotating knives,thus providing a double comminuting action. I also prefer to so formsuch knives and the chamber in which they rotate as to prevent anypumping action of such knives due to their rotation, thus avoidinglateral disturbance of the stream of waste material and water issuingfrom such discharge passage and preventing overload of the power meansemployed to rotate the rotating cutter, and this is another object ofthe invention.

Still another object of the invention is to provide such a disposaldevice including a comminuting chamber and a motor chamber, having amotor therein, with suitable heat insulation between the comminutingchamber and the motor chamber, and providing the motor chamber with acooling medium during operation so as to cool the motor but at the sametime preventing condensation thereon which might otherwise occur due totemperature drop in the comminuting chamber.

A further object of the invention is to provide such a disposal devicehaving an outer housing and an inner housing therein, the inner housingproviding a comminuting chamber therein, the inner housing beingseparate from the outer housing but inscrtable therein, so as to providean economical construction which is easy to assemble. I prefer toprovide a space between the upper end of the inner housing and the outerhousing so as to permit overflow liquid to discharge therethroughoutwardly into a space between the housings, and this is another objectof the invention. Also, I prefer to provide an inner depending annularwall on the outer housing which extends downwardly and into the upperend of the inner housing and is spaced therefrom so as to form anannular overow port therebetween, the depending annular wall alsofunctioning as a baffle to prevent waste material from passing readilythrough such port, and this is also an object of the invention.

Other objects and advantages will appear from the drawings and thefollowing specification, which are for illustrative purposes only, andin which:

Fig. 1 is a vertical sectional view taken through my invention installedfor service;

Fig. 2 is a cross-sectional view taken on thc line 2-2 of Fig. 1;

Fig. 3 is a. cross-sectional view taken on the line 3-3 of Fig. 1;

Fig. 4 is a wiring diagram of the electrical circuit of my invention;

Fig. 5 is an enlarged perspective view of one of the stationaryside-wall cutters of my invention;

Fig. 6 is a fragmentary sectional view taken on the line 6 6 of Fig. 3;and

Fig. 'I is a fragmentary plan view of one of the movable cutters in openposition.

Referring to the drawings, Fig. 1 shows a hopper unit |Il comprised ofan outer section and an inner section I2. The outer section Il isprovided at its upper end with an annular flange I3, by which the hopperunit III is supported by a mounting structure |4 beneath a conventionalsink I5. As is usual, the sink I5 is provided with a depending annularflange I1 providing a drain opening I8 for the sink. The mountingstructure I4 includes a sleeve member I9 adapted to t into the drainopening IB and having an annular flange 20 at the upper end thereofwhich seats on the sink I5, the lower end of the sleeve member beingexternally threaded to receive an annular plate 2|. The plate 2| isspaced from the top of the flange I3 of the hopper unit III by anannular gasket ring 23, preferably formed of rubber or other resilientmaterial, and the hopper unit is clamped relative to the plate 2| bymeans of vertical screws 24 passing through a lower annular plate 25 andthe upper annular plate 2|, the lower annular plate being spaced fromthe flange I3 by a lower gasket ring 26 also preferably formed of rubberor other resilient material. As will be understood, the mountingstructure I4 provides means for reslliently mounting the hopper unit I0beneath the sink I5 and permits the hopper unit I0 to be rotated throughan are of 360 relative to the mounting structure, which is a feature ofthe invention.

The outer section Il of the hopper unit I0 is provided with a boss 28having an inlet opening 29 therein which communicates with the interiorof the upper section Il, the boss being internally threaded to receivethe end of a water supply pipe 30 leading to a suitable source of waterunder pressure (not shown). Disposed in the line of the water supplypipe 30 is a conventional solenoid actuated valve 3|, adapted toalternatively open or close communication between the source of water inthe water supply pipe 30 and the interior of the outer section I. 'Iheouter section I I is also provided with a depending tubular inner wall32 which extends downwardly into the upper end |2a of the inner sectionI2 and is spaced therefrom to provide an annular overflow port 32atherebetween. As will be noted, the overflow port 32a is disposed asubstantial distance below theinlet port 29, and this is an importantfeature of the invention, as it insures that the liquid level in thehopper unit I0 cannot rise to the level of the inlet port 29.

The inner section I2 of the hopper unit Ill is concentric with the outersection I`I and has a main inner wall 40, the lower portion of whichdiverges outwardly and downwardly to form a comminuting chamber 4I, themain inner wall 4|) being spaced from the outer section I I to form aspace 39 therebetween. The outer section Il, as best shown in Fig. 3, isprovided with three circumferentially spaced recesses 43. Adjacent eachof the recesses 43 the outer section |I is provided at its bottom withan inwardly extending curved ear member 44 defining one wall of avertical channel 45, the inner end of the ear member extending intoclose proximity or engagement with the outer wall of the comminutingchamber 4|. The eomminuting chamber 4| is provided on its outer wallwith three extending ear elements 46, each of which extends into one oithe vertical recesses 43 to define another wall of the correspondingchannel 45,- there being packing material 41, such as rubber or the likeadapted to provide a resilient mounting, in the recess so as to form aseal around the outer end of the ear element projecting thereinto. Thechamber 4I ls also provided with a vertical discharge slot 48 adjacenteach of the ear elements 46 and communicating between the interior ofthe comminuting chamber and one of the vertical channels 45. Although Ishow three of such discharge slots, it is to be understood that eithermore or less thereof may be employed as desired. Retained in each of thevertical channels 45 is a stationary cutter element 49, being removablyretained therein by a suitable setscrew 49a passing through thestationary cutter element and the ear element 46, and by which thecutter element is rigidly clamped to the ear element. The stationarycutter element 49 is provided with a cutting face 52 havingsubstantially parallel projecting teeth 53 which project through theslot 48 into the commlnuting chamber 4|. The leading edge 54 of each ofthe teeth 53 is quite sharp and forms an acute angle due to the factthat the trailing edge 55 of the teeth is substantially relieved so asto prevent the clogging of comminuted material behind the leading edge54. The stationary cutter element 49 is also provided with a nat bottom56, which forms a second cutting face to be described hereinafter.

Disposed below the hopper unit Ill ls a lower housing 58, which isrigidly secured to the outer section il of the hopper unit by means ofsuitable screws 59. As shown in Fig. 1, the ear elements 4B of the innersection i2 rest on the top face 51 of the lower housing 5B to supportthe inner section, and the inner section is rigidly clamped in positionby the cooperation of the outer section ll and the lower housing. Thelower housingii has an annular and substantially horizontal wall 60which forms the bottom of an annular discharge chamber 6I whichregisters with the vertical channels 45, and has formed integrallytherewith or connected thereto a discharge pipe fitting 62 adapted toreceive a suitable discharge ttlng 63 which leads to a sewer or otherwaste material connection (not shown). As illustrated in Fig. 3, thedischarge pipe fitting 62 is spiral in form so as to permit comminutedmaterial in the annular discharge chamber 6l' to smoothly flow to thedischarge fitting 63.

The lower housing B also has an outer tubular depending wall 65 to thelower end of which is suitably secured an electric motor 66, the wallhaving openings B1 therein so as to permit the discharge of air from theinterior of the lower housing. The motor 68 is provided with a verticaldrive shaft Gil extending upwardly therefrom and having on it a fan 89,the fan being adapted in response to rotation of the drive shaft lili todraw air through the motor and discharge such air through the openingsB1, to cool the motor windings.

To the upper end of the drive shaft 68 is rigidly xed a rotatable tableelement 1I, which includes a rotary cutting means of the invention. Therotatable table element 1i has anA upwardly projecting boss 12 in thecenter thereof which substantially obstructs the center of the tableelement and to which is rigidly xed the rotatable drive shaft BB bymeans of a screw 13. The top of the rotatable table element 1l,outwardly from the boss 12, is slightly conical in form, providing adished upper surface 14, the outer rim 15 of which extends into closeprox imity with the inner wall 40 of the inner section l2 of the hopperunit In, being spaced slightly upwardly from the lower end thereof. Theclearance between the outer rim 15 and the inner wall 4I is maintainedas small as possible so as to prevent the passage of comminuted materialtherethrough during operation of the device, which is very undesirablein my invention. In the outer rim 15 are substantially vertical grooves18 which, when the rotatable table element 1l is not rotating, permitexcess water ln the inner section I2 of the hopper unit Ill to dischargereadily fro'm the chamber Il into the discharge chamber 6 Projectingfrom the outer rim 15 of the rotatable table element 1l are a pluralityof cutter knives 19 which extend into the discharge chamber 6| beneaththe channels 45 so as to pro- Til vide only a slight clearance with theflat bottom 5B of each of the stationary cutter elements 49. Asillustrated in Fig. 1, the cutter knives 19 are relatively thin and aredisposed so that the knives will not create any appreciable centrifugalpumping effect in the annular discharge chamber 6I which might otherwiseoverload the motor 66. The cutter knives 19 cooperate with the fiatbottom 5B of each of the stationary cutter elements 49 to form secondarycutting means of the invention.

Provided on the dished upper surface 14 of the rotatable table element1I is a pair of movable cutters B0 and 8l which are rotatably mounted onthe table element 1i by means of pins 82 and 83. respectively. Since thecutters Bil and 8i are identical, only the cutter 8l) will be described.The pin 82 projects from the movable cutter B0 on one side of thelongitudinal center line thereof so as to place the center of gravity ofthe cutter on one side of the axis of the pin, so that when the tableelement 1l is rotated by the drive shaft 68, centrifugal force acting onthe movable cutter Bil will rotate it relative to the element 1i to thecutting position illustrated in Fig. 3, in which it engages a suitablestop pin B4. The movable cutter lill is provided with an outer cuttingface B6 which is adapted to cooperate with the cutting faces 52 of thestationary cutter elements 49 to comminute garbage or other wastematerial therebetween. The movable cutters all and 8| are disposed sothat their cutting faces 86 closely approach the leading edges 54 of thestationary cutter elements 49 when the movable cutters are in theircutting positions as illustrated in Figs. 1 and 3, with only a slightclearance therebetween. The stop pins 84 prevent the movable cutters andBI from rotating into actual engagement with the stationary cutterelements 49. By so retaining the movable cutters 80 and 8i in cuttingposition merely by centrifugal force exerted by the rotatable tableelement 1I, it will be understood that the movable cutters may rotateback to retracted position, as illustrated in Fig. 7, in the event thata non-comminutable material, such 'as a metal object or glass, ilnds itways into the comminuting chamber 4L thus prevent-- ing damage to thecutting faces 52 and 86. It is also to be noted that the movable cutteriill is provided with a generally sloping top contour 81 which slopesgenerally downwardly away from the outei' cuttingr face 86 thereof. Thisis an important feature because when the movable cutter B0 is in itsretracted position, illustrated in Fig. 7, non-comminutable materials,such as metal or glass, can readily pass over the movable cutter due toits sloping top contour 81, thus tending to prevent such foreign objectsfrom wedging between the movable cutter and any one oi the stationarycutters 48. As will be understood. the movable cutters are disposed onats 88 formed in the upper dished surface 14 of the table element 1I soas to permit their rotation.

The vertical drive shaft GB of the motor 66 is centered by radialbearings 89 retained in a reentrant wall 90 forming a continuation ofthe wall 60. the reentrant Wall forming a sealing chamber 9| therein andan insulation chamber 92 therearound. The insulation chamber 92 isfilled with any suitable heat insulation material 93 retained in placeby a retainer plate 94. The insulation material 93 is designed toprevent condensation of moisture from the air stream produced by the fan69 when rotated due to the 7 normally lower temperature in the chamber4|, which is undesirable.

Disposed in the sealing chamber is a sealing unit 00 which constitutes asealing means of the invention and is adapted to provide a fluid-tightseal between the lower housing I8 and the rotatable table element 1|.The sealing unit 0B forms no part of the present invention. beingseparately disclosed and claimed, and any conventional shaft seal may besubstituted therefor in the present invention.

The horizontal wall 60 and the reentrant wail 9| are provided with anintegrally formed depending web 91 having a radial port 0B therethroughcommunicating with the bottom of the sealing chamber 9| for the purposeor discharging any leakage that may pass the sealing unit 08.

As illustrated in Figs. 1 and 2, disposed in the upper portion of theouter section I I of the hopper unit l0 ls a safety device |03 whichconstitutes a blocking means of the invention, adapted to deenergize theelectric motor 0B when the safety device is moved, so as to protectagainst the possibility of a human hand being inserted into the hopperunit during rotation of the rotatable table element 1|. The safetydevice |03 includes a rod |04 having a head |05 thereon, the rod beingrigidly fixed to a transverse supporting rod |06 which in turn isrotatably supported by suitable sleeve bearings |01 formed integrallywith the outer wall of the outer section One end of the rod |06 projectsout of its bearing |01 and has secured rigidly thereto a sleeve |08provided with an extending arm |09 disposed perpendicular to the sleeveand rod. Also formed on or secured to the outer wall of the outersection |I is a switch box ||0 having a conventional electric switch |I|therein, the switch being provided with a push button ||2 which isnormally held in depressed position by the arm |09. The switch III is ofa conventional type in which electrical contact is made when the pushbutton ||2 is depressed and such electrical contact is broken when thepush button is released, as by a suitable spring (not shown). The arm|00 and the switch box ||0 may be temporarily locked together by a softwire ||2 passing through each. It will be apparent that downwardmovement of the rod |04 and head |05, due to attempted insertion of ahand into the hopper unit I0 or otherwise. rotates the supporting rod|06 and the arm |09. breaking the soft wire Il! and moving the arm outof engagement with the push button ||2 to permit the latter to moveoutwardly to break the electrical circuit to be described hereinafter.To again close the electrical circuit requires that the push button ||2be manually depressed and the arm |09 manually rotated back to itsretaining position as shown. This manual resetting operation is notdifficult, but tends to be aggravating to the operator and,consequently, acts to deter the operator from thrusting his hand intothe hopper unit except when it is essential to do so. The rod |04 andhead |05 are sumciently small that garbage may readily pass thereby intothe hopper unit I0 without actuating the safety device |03.

The electric circuit shown in Fig. 4 illustrates one side of theelectric motor 00 connected by a wire H through a main switch Ill to onewire ||1 of the electric current main. The other side of the motor 86 isconnected by a. wire ||0 to the switch III, which in turn is connectedto the other wire H0' of the current main. In parallel with the motor86. hut alan controlled by the main switch HI. is a conventionalsolenoid |20 adapted 'fJ Mtuate the solenoid actuated valve 3|, Thesolenoid |20 and the solenoid actuated valve Il are of any conventionaltype in which the valve is maintained open by the solenoid so long asthe solenoid is electrically energized so as to permit passage of iluidthrough the supply pipe 00. When the solenoid |20 is deenerglzed,suitable spring means (not shown) return the solenoid actuated valve 3|to closed position so as to shut oi! the ow of iluid through the supplypipe 30. No claim to novelty is made herein as to the detailedconstruction of the solenoid |20 or the solenoid actuated valve 2| ortheir connection, which is conventional in the art.

In operation, garbage or other waste material is placed in the hopperunit I0, through the sleeve member I8, until the chamber 4| of thehopper unit is substantially filled. The main switch III,diagrammatically illustrated in Fig. 4, is then manually closed. whichcompletes the electrical circuit through the electric motor 00 andenergizes the same. At the same time, the solenoid |20 is similarlyenergized to open the solenoid actuated valve 2| to permit a ilow ofwater or other ushing iluid through the supply pipe 20 into the hopperunit |0 through the inlet opening 29. Energization of the electric motoril r0- tates the vertical drive shaft 00 to similarly rotate therotatable table element 1|. When the rotatable table element 1| isstationary and not rotating, the movable cutters 00 and 0| may be in theretracted position illustrated by dotted lines 81 of Fig. 3. However,immediately upon rotation oi the rotatable table element 1|, centrifugalforce operating on the movable cutters B0 and 8| rotates the same totheir cutting positions illustrated in full lines in Fig. 3, in whichpositions they cooperate with the stationary cutter elements 49 tocomminute the garbage or other waste material disposed in the chamberIl. As will be evident, the rotatable table element 1| preferablyrotates clockwise as seen in Fig. 3, although it may be alternativelyrotated in the opposite direction if desired without departing from thespirit of the invention. The garbage or other waste material in thechamber 4| is rotated witi. the rotatable table element 1| by themovable cutters 00 and 0|. and is thrown to the periphery oi' therotatable table element by centrifugal force so that as it passes thestationary cutter elements I0 it is comminuted by the action of themovable cutters 00 and 0| acting therewith or by the stationary cuttersalone, the smaller pieces thereof being moved outwardly through thevertical discharge slots I0 by centrifugal force and by the thrust ofthe movable cutters 00 and Il and by the action of the water in thechamber Il, into the vertical channels I5, downwardly through which thegarbage or waste material fails and is flushed by the flushing liquid.The rotation of the movable cutters and 8| in the chamber Il alsoprovides a slight pumping action which is communicated through the slots40 and vertical ch nnels 45 to the discharge chamber 0|, tending .toexpel comminuted material therefrom through the discharge pipe tting l2and the discharge iitting 03.

Waste material passing downwardly through the vertical dischargechannels l5 is further cut into small pieces by the shearing action ofthe rotating cutter knives 10 carried by the rotatable table elements1|, as the knives pass by and in cutting relation with the ilat bottomwall 0l of each of the stationary cutter elements I0. It will thus beunderstood that the garbage or other waste material in the chamber 4| isfirst cut-or shredded therein between the cutting faces 86 of themovable cutters 80 and 8| and the cutting faces 8E of the movablecutters 8l) and Bl and the cutting faces 52 of the stationary cuttersI9, and such material is subsequently further cut and comminuted by theshearing action of the cutter knives 19 as the material passes from thevertical channels 45 into the discharge chamber 6|l This dual cuttingfeature is an important object of the invention, as it insures that anylong shreds of garbage or filaments of fibrous material or other wastematerial which pass through the vertical discharge slots 48 aresubsequently reduced to small pieces and short lengths by the action ofthe cutter knives 19, which insures that all of the comminuted materialmay be readily flushed out of the discharge chamber BI and into thesewer or other disposal point. I have established by tests of my devicethat it comminutes and disposes of garbage or other waste materials muchmore effectively than do standard garbage disposal units now on themarket, being very eihcient in the disposal of brous material, such asasparagus and other fibrous vegetables, with which considerabledifficulty has heretofore been experienced with standard types ofmachines. The boss 12 on the table element 'Il obstructs the center ofthe table element and insures that bones or other large pieces of wastematerial cannot wedge between the movable cutters 80 and 8i, or betweeneither of the movable cutters and either of the stationary cutters 4S,or between any of the cutters and the Wall.

Although I have shown and described a preferred embodiment of myinvention, it will be understood by those skilled in the art that manymodifications can be made in the present construction without departingfrom the spirit of my invention, and, consequently, I do not intend tobe limited by the specific embodiment illustrated and described herein,but desire to be afforded the full scope of the following claims,

I claim as my invention:

l. In a waste disposal device, the combination of a hopper member; arotatable head member mounted on a vertical axis in the lower portion ofsaid hopper member; stationary cutting means in a side wall of saidhopper member; a. rotatable cutter element which is low relative to theheight of the hopper member and is rotatable on a substantially verticalaxis relative to said head member and carried thereby, said axis of saidrotatable cutter element being spaced from said axis of said headmember, said cutter element having its top surface sloped sharplydownwardly from the swinging end of said cutter element toward its axisso that when said movable cutter element is rotated to retractedposition in which said leading edge is faced away from said side wallwaste material in said hopper member is deflected upward by said movablecutter element, said cutter axis being disposed approximately halfwayfrom the axis of rotation of said head member to the periphery thereof,the central portion of said head member sloping downward from its axisto the inner end of said cutter, and power means for rotating said headmember.

2. In a waste disposal device, the combination of: a housing providing acomminuting chamber therein with an annular opening in the lower endthereof; a rotary member in the lower portion of said chambersubstantially closing said opening so that comminuted rr aterial cannotpass between said member and thF wall of said chamber during rotation ofsaid member, the walls of said housing above said annular opening beingprovided with passages therethrough for the discharge of comminutedmaterial from said chamber at a level above said opening; comminutingmeans in said chamber operable to comminute waste material in saidchamber in response to rotation of said member; and means on said memberfor impelling waste material in said chamber away from said opening.

3. In a waste disposal device, the combination of: a hopper member; arotatable head member rotatable in the lower portion of said hoppermember on a substantially vertical axis and substantially closing thelower end of the hopper member; a stationary cutter element in saidhopper member, said stationary cutter element having a pair of cuttingedges; means defining a discharge chamber below said head member; meansdefining an opening in said hopper member between the interior of saidhopper member and said discharge chamber and adapted to permit thepassage of waste material therethrough, one of said cutting edgesupstanding along said opening, and the other of said cutting edges beingangularly disposed below said upstanding edge and projecting outwardfrom said upstandlng edge; upstanding wall means outside said openingproviding a vertically disposed channel to feed out waste material fromsaid opening to said other cutting edge; a first cutter element movablymounted on an upwardly extending axis spaced from said axis of said headmember on said head member and so disposed with respect to saidstationary cutter element that rotation of said head member brings saidfirst cutter element into cutting relation to said upstanding one ofsaid cutting edges o1' said stationary cutter element; a second cutterelement xed on said head member so as to be rotatable therewith. saidsecond cutter element being independent of said rst cutter element anddisposed in said discharge chamber. said second cutter element being incutting relation to said other of said cutting edges of said stationarycutter element; and power means for rotating said head member.

4. The combination defined in claim 3, in which said second cutterelement projects radially from said head member.

5. The combination defined in claim 3 in which said second cutterelement is formed integral with said head member and projects radiallytherefrom.

6. The combination dened in claim 3, in which said other cutting edge ofsaid stationary cutter element is disposed in a plane normal to the axisof rotation of said head member, and in which said second cutter elementprojects radially from said head member and has a cutting faceunderlying said stationary cutter element and disposed in cuttingrelation to said second cutting edge of said stationary cutter element,

7. The combination as defined in claim 3, in which said other cuttingedge of said stationary cutter element is disposed in a plane normal tosaid axis, said second cutter element projecting radially from said headmember in parallel relation to and underlying said second cutting edgein cutting relation thereto so as to comminute waste material passingthrough said opening.

8. In a waste disposal device, the combination of: an outer housingmember having a bottom 1l providing a receiving chamber and providedwith discharge means leading from said chamber; an inner housing memberconcentric with said outer housing member and providing an annular spacetherebetween, said inner housing member delining s, comminuting chamberand having a piuralp ity of openings communicating between saidcomminuting chamber and said space; a plurality of substantially radialpartition members in said annular space and extending between saidhousing members and denning vertical channels communicating with saidopenings: comminutins means in said commlnuting chamber adapted tocomminute 'waste material therein; and a ilxed cutter mounted at oneside o! each o1 said plurality of openings and disposed in cooperativerelationship with said comminuting means in said commnuting chamber, thecommlnuted waste material passing outwardly from said comminutingchamber through said openings into said channels and downwardtherethrough to said receiving chamber.

9. A device as in claim 2. wherein said means on said rotary member toimpel waste away from said annular opening comprises walls on said ro-25 12 tary member disposed to direct waste material from said opening.

10. A waste disposal device as in claim 1 wherein said rotatable cutterelement is centrifuzally operated.

HANS JORDAN.

REFERENCES CITED The following references are of record in the ille ofthis patent:

UNITED STATES PATENTS Certificate of Correction Patent N0. 2,442,812.

It is hereby certified that Number Name Date 694,096 Fillingham Feb. 25,1902 1,896,242 Chandler Feb. 21, 1933 1,915,049 Cohen June 20, 19332,012,680 Hammes Aus. 27, 1935 2,156,075 Aiexay Apr. 25, 1939 2,166,786Alexay July 19, 1939 2,220,729 Powers Nov. 5, 1940 2,244,402 Powers June3, 1941 2,322,058 Powers June 15, 1943 2,418,366 Powers Apr. 1, 19472,421,014 Goss et al May 27, 1947 June 8, 1948.

HANS JORDAN errors appear in the printed specification of the abovenumbered patent requiring correction as follows: Column 2, line 11, forinvetnion read invention;

column 6, line 46, for the words it Ways read its way column 9,

lines 4 and 5, strike out and the cutting faces 86 of the movablecutters 80 and 81;

column 12, line 24, the said Letters may conform to list of referencescited, for "Goss et al. Patent should be read with these correctionstherein that the same the record of the case in the Patent Oice.

read Cose et al.; and that Signed and sealed this 7th day of September,A. D. 1948.

THOMAS F. MURPHY,

Assistant Commissioner of Patents.

1l providing a receiving chamber and provided with discharge meansleading from said chamber; an inner housing member concentric with saidouter housing member and providing an annular space therebetween, saidinner housing member delining s, comminuting chamber and having apiuralp ity of openings communicating between said comminuting chamberand said space; a plurality of substantially radial partition members insaid annular space and extending between said housing members anddenning vertical channels communicating with said openings: comminutinsmeans in said commlnuting chamber adapted to comminute 'waste materialtherein; and a ilxed cutter mounted at one side o! each o1 saidplurality of openings and disposed in cooperative relationship with saidcomminuting means in said commnuting chamber, the commlnuted wastematerial passing outwardly from said comminuting chamber through saidopenings into said channels and downward therethrough to said receivingchamber.

9. A device as in claim 2. wherein said means on said rotary member toimpel waste away from said annular opening comprises walls on said ro-25 12 tary member disposed to direct waste material from said opening.

10. A waste disposal device as in claim 1 wherein said rotatable cutterelement is centrifuzally operated.

HANS JORDAN.

REFERENCES CITED The following references are of record in the ille ofthis patent:

UNITED STATES PATENTS Certificate of Correction Patent N0. 2,442,812.

It is hereby certified that Number Name Date 694,096 Fillingham Feb. 25,1902 1,896,242 Chandler Feb. 21, 1933 1,915,049 Cohen June 20, 19332,012,680 Hammes Aus. 27, 1935 2,156,075 Aiexay Apr. 25, 1939 2,166,786Alexay July 19, 1939 2,220,729 Powers Nov. 5, 1940 2,244,402 Powers June3, 1941 2,322,058 Powers June 15, 1943 2,418,366 Powers Apr. 1, 19472,421,014 Goss et al May 27, 1947 June 8, 1948.

HANS JORDAN errors appear in the printed specification of the abovenumbered patent requiring correction as follows: Column 2, line 11, forinvetnion read invention;

column 6, line 46, for the words it Ways read its way column 9,

lines 4 and 5, strike out and the cutting faces 86 of the movablecutters 80 and 81;

column 12, line 24, the said Letters may conform to list of referencescited, for "Goss et al. Patent should be read with these correctionstherein that the same the record of the case in the Patent Oice.

read Cose et al.; and that Signed and sealed this 7th day of September,A. D. 1948.

THOMAS F. MURPHY,

Assistant Commissioner of Patents.

